S-90117A534 1/4"-20 x 1/4" ASME B18.3 Alloy Steel Wire-Lockable Socket Head Screws
Alloy Steel Wire-Lockable Socket Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional tensile strength of 170,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure in demanding applications.
- Precise Class 3A thread fit provides superior engagement and vibration resistance, minimizing loosening in critical assemblies.
- Black-oxide coating on alloy steel offers enhanced corrosion resistance and a durable, non-reflective finish suitable for industrial environments.
- Rockwell C37 hardness delivers excellent wear resistance and longevity, maintaining thread integrity through repeated use.
- 3/16" hex drive design allows for high-torque installation with standard tools, ensuring secure fastening and ease of maintenance.
- Fully threaded UNC coarse thread enables quick assembly and strong holding power in a wide range of materials.
- Compliance with ASME B18.3, RoHS 3, and REACH guarantees adherence to industry standards and environmental regulations for global supply chain compatibility.
Professional Applications & Engineering Value
This 1/4"-20 UNC Socket Head Cap Screw is engineered to address common industrial challenges such as vibration-induced loosening and corrosion in harsh operating conditions. The black-oxide alloy steel construction, combined with a Class 3A thread fit, ensures tight tolerances and reliable performance in machinery, automotive, and heavy equipment applications. The coarse thread design facilitates rapid installation and provides robust clamping force, while the socket head allows for compact spaces and high torque application. Ideal for assembly lines and maintenance operations, this screw reduces downtime and enhances structural integrity by meeting rigorous ASME B18.3 standards.
Specification Summary & Compliance
This product features a 1/4"-20 UNC thread with Class 3A fit for precise dimensional accuracy and coarse spacing. It is manufactured in compliance with ASME B18.3 specifications and is RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring environmental safety and regulatory adherence for industrial use.
